IBM Support

PI82233: NON-DAEMON THREADS ARE CREATED WITH REMOTE EJB USING THE IIOP TRANSPORT

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • A remote EJB using the IIOP transport causes non-daemon
    threads
    to be created.  This can cause the JVM to not terminate when
    Liberty is shut down.
    
    The non-daemon thread will have a call stack like this:
    Java callstack:
    at java/net/PlainSocketImpl.socketAccept
    at java/net/AbstractPlainSocketImpl.
    accept(AbstractPlainSocketImpl.java:450)
    at java/net/ServerSocket.implAccept(ServerSocket.java:623)
    at java/net/ServerSocket.accept(ServerSocket.java:582)
    at org/apache/yoko/orb/OCI/IIOP/Acceptor_impl.
    accept(Acceptor_impl.java:126)
    at org/apache/yoko/orb/OB/GIOPServerStarterThreaded.
    starterRun(GIOPServerStarterThreaded.java:184)
    at org/apache/yoko/orb/OB/GIOPServerStarterThreaded$Starter.
    run(GIOPServerStarterThreaded.java:34)
    at java/util/concurrent/Executors$RunnableAdapter.
    call(Executors.java:522(Compiled Code))
    at java/util/concurrent/FutureTask.
    run(FutureTask.java:277(Compiled Code))
    at java/util/concurrent/ThreadPoolExecutor.
    runWorker(ThreadPoolExecutor.java:1153(Compiled Code))
    at java/util/concurrent/ThreadPoolExecutor$Worker.
    run(ThreadPoolExecutor.java:628)
    at java/lang/Thread.run(Thread.java:785)
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  Users using the embedder API to stop a      *
    *                  Liberty server that uses IIOP               *
    ****************************************************************
    * PROBLEM DESCRIPTION: Liberty server hangs indefinitely when  *
    *                      stopped via the shutdown API            *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    The IIOP listener threads are not daemon threads and prevent the
    attached JVM from exiting.
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    PI82233

  • Reported component name

    LIBERTY PROF -

  • Reported component ID

    5655W6514

  • Reported release

    CD0

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-05-26

  • Closed date

    2017-11-28

  • Last modified date

    2017-11-28

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    LIBERTY PROF -

  • Fixed component ID

    5655W6514

Applicable component levels

  • RCD0 PSY

       UP

[{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG19M","label":"APARs - z\/OS environment"},"Platform":[{"code":"PF054","label":"z Systems"}],"Version":"CD0","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
17 June 2020